PIC16LF19185T-I/MV - 8-bit 32MHz 14KB Flash XLP MCU | Microchip
MPN: PIC16LF19185T-I/MV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.42 | $34.20 |
| 100 | $2.98 | $298.00 |
| 500 | $2.65 | $1,325.00 |
| 1,000 | $2.3 | $2,300.00 |
| 3,300 | $2.05 | $6,765.00 |
PIC16LF19185T-I/MV Overview
A PIC microcontroller is a Harvard-architecture RISC processor optimized for embedded control, deterministic interrupt response, and low-power operation. Within the Microchip taxonomy, this part belongs to the PIC16F191xx family, which sits between the smaller PIC16F1xxx and higher-pin PIC18F/dsPIC33 families; it is engineered for human-machine interface (HMI) products where an integrated LCD driver and rich analog peripherals reduce bill of materials.
Key features include 43 digital I/O lines, up to 32 MHz internal oscillator, hardware Real-Time Clock/Calendar (RTCC), Complementary Waveform Generator (CWG), Zero-Cross Detection (ZCD), and SMT (Signal Measurement Timer). The nanoWatt XLP sleep currents are typically below 50 nA with RTCC retention, and the wide 1.8V-3.6V supply range supports single-cell Li-Ion or 2x AA battery topologies.
The device is built on an enhanced mid-range core with 14-bit instruction word, 8-level hardware stack, and single-cycle 35 ns instruction execution. PPS allows digital peripherals to be remapped to virtually any I/O pin, simplifying PCB layout, while the CTMU provides capacitive touch and mTouch sensing capability for button replacement.
Typical applications include battery-powered IoT sensor nodes, low-cost thermostats with LCD readouts, medical dosing pumps, and consumer remote controls. The integrated LCD controller directly drives segmented displays up to 128 segments, eliminating external driver ICs.
When designing with this MCU, ensure that the 48-pin UQFN thermal pad is soldered to a sufficient copper pour to meet the 1.8V-3.6V brown-out reset threshold. Configuring PPS before enabling peripherals is mandatory to prevent spurious interrupts during startup.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16LF19185T-I/MV — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16LF19185T-I/MV (same form factor and footprint) — differing in Core Architecture, Package, Comparators, ADC, LCD Driver.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF19186T-I/MV
✅ Drop-In✓ In Stock
$1.89 / Unit
View Datasheet →PIC16LF19176T-I/MV
✅ Drop-In✓ In Stock
$1.31 / Unit
View Datasheet →PIC16LF19155T-I/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF19195T-I/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF19156T-I/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1789T-I/MV
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF19185T-I/MV Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range 8-bit RISC |
| Instruction Word Size | 14-bit |
| Maximum CPU Frequency | 32 MHz |
| Instruction Cycle Time | 125 ns @ 32 MHz (4 clock per instruction) |
| Program Flash Memory | 14 KB (8K x 14) |
| Data SRAM | 1 KB |
| Data EEPROM | 256 B |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| Digital I/O Pins | 43 |
| LCD Driver Segments | Up to 128 segments |
| Comparators | Low-power comparators with selectable reference |
| Peripheral Pin Select (PPS) | Yes (digital peripheral remap) |
| CTMU | Charge Time Measurement Unit for mTouch/capacitive sense |
| ZCD | Zero-Cross Detection module |
| Operating Temperature | -40C to +85C (Industrial) |
| Package | 48-pin UQFN (MV) 6x6 mm |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF19185T-I/MV Pin Configuration
| Pin 1 | RA0 — PORTA bit 0 (analog/digital I/O, PPS) |
| Pin 2 | RA1 — PORTA bit 1 (analog/digital I/O, PPS) |
| Pin 3 | RA2 — PORTA bit 2 (analog/digital I/O, PPS) |
| Pin 4 | RA3 — PORTA bit 3 (analog/digital I/O, PPS) |
| Pin 5 | RA4 — PORTA bit 4 (analog/digital I/O, PPS) |
| Pin 6 | RA5 — PORTA bit 5 (analog/digital I/O, PPS) |
| Pin 7 | RA6 — PORTA bit 6 (analog/digital I/O, PPS) |
| Pin 8 | RA7 — PORTA bit 7 (analog/digital I/O, PPS) |
| Pin 9 | VDD — Positive supply (1.8-3.6 V) |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RB0 — PORTB bit 0 (PPS, interrupt-on-change) |
| Pin 12 | RB1 — PORTB bit 1 (PPS, interrupt-on-change) |
| Pin 13 | RB2 — PORTB bit 2 (PPS, interrupt-on-change) |
| Pin 14 | RB3 — PORTB bit 3 (PPS, interrupt-on-change) |
| Pin 15 | RB4 — PORTB bit 4 (PPS, interrupt-on-change) |
| Pin 16 | RB5 — PORTB bit 5 (PPS, interrupt-on-change) |
| Pin 17 | RB6 — PORTB bit 6 (PPS, ICD clock) |
| Pin 18 | RB7 — PORTB bit 7 (PPS, ICD data) |
| Pin 19 | RC0 — PORTC bit 0 (PPS) |
| Pin 20 | RC1 — PORTC bit 1 (PPS) |
| Pin 21 | RC2 — PORTC bit 2 (PPS) |
| Pin 22 | RC3 — PORTC bit 3 (PPS) |
| Pin 23 | RC4 — PORTC bit 4 (PPS) |
| Pin 24 | RC5 — PORTC bit 5 (PPS) |
| Pin 25 | RC6 — PORTC bit 6 (PPS) |
| Pin 26 | RC7 — PORTC bit 7 (PPS) |
| Pin 27 | RD0 — PORTD bit 0 (PPS) |
| Pin 28 | RD1 — PORTD bit 1 (PPS) |
| Pin 29 | RD2 — PORTD bit 2 (PPS) |
| Pin 30 | RD3 — PORTD bit 3 (PPS) |
| Pin 31 | RD4 — PORTD bit 4 (PPS) |
| Pin 32 | RD5 — PORTD bit 5 (PPS) |
| Pin 33 | RD6 — PORTD bit 6 (PPS) |
| Pin 34 | RD7 — PORTD bit 7 (PPS) |
| Pin 35 | RE0 — PORTE bit 0 (PPS) |
| Pin 36 | RE1 — PORTE bit 1 (PPS) |
| Pin 37 | RE2 — PORTE bit 2 (PPS) |
| Pin 38 | RE3 — PORTE bit 3 (PPS) |
| Pin 39 | VDD — Positive supply (1.8-3.6 V) |
| Pin 40 | VSS — Ground reference |
| Pin 41 | RF0 — PORTF bit 0 (PPS, LCD SEG) |
| Pin 42 | RF1 — PORTF bit 1 (PPS, LCD SEG) |
| Pin 43 | RF2 — PORTF bit 2 (PPS, LCD SEG) |
| Pin 44 | RF3 — PORTF bit 3 (PPS, LCD SEG) |
| Pin 45 | RF4 — PORTF bit 4 (PPS, LCD SEG) |
| Pin 46 | RF5 — PORTF bit 5 (PPS, LCD SEG) |
| Pin 47 | RF6 — PORTF bit 6 (PPS, LCD SEG) |
| Pin 48 | RF7 — PORTF bit 7 (PPS, LCD SEG, EP) |
Typical Applications
PIC16LF19185T-I/MV is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Thermostat with Segmented LCD, Medical Dosing Pump Controller, Consumer Remote Control with Touch Buttons, Industrial Sensor Transmitter (4-20 mA), Smart Home Edge Controller.
Battery-Powered IoT Sensor Nodes
The PIC16LF19185T-I/MV's nanoWatt XLP sleep currents below 100 nA with RTCC retention and 1.8-3.6 V VDD make it ideal for battery-powered IoT sensor nodes that must run for years on a single CR2032 cell. The 12-bit ADC2 captures sensor data, the CTMU supports capacitive water or soil-moisture sensing, and the UART/SPI/I2C peripherals communicate with sub-GHz radios or BLE modules. The 32 MHz HFINTOSC eliminates external crystals, reducing BOM and quiescent draw. Designers pair this MCU with the MCP9808 temperature sensor and an RN4870 BLE module for a complete coin-cell IoT platform.
Recommended
Thermostat with Segmented LCD
The PIC16LF19185T-I/MV's integrated LCD driver supports up to 128 segments, eliminating an external LCD controller in wall-mount thermostats and saving $0.30-$0.50 per unit in BOM cost. The 12-bit ADC2 reads thermistor or analog temperature sensors, while PWM drives the relay or triac for HVAC control. PPS allows the keypad and LCD data lines to share pins efficiently, simplifying PCB layout in 48-pin designs. The device's 1.8 V minimum VDD supports direct 2x AA battery backup for clock retention during power outages.
Recommended
Medical Dosing Pump Controller
The PIC16LF19185T-I/MV's deterministic interrupt response, hardware RTCC, and CTMU touch button support make it suitable for medical dosing pumps where predictable timing is critical for patient safety. The 12-bit ADC2 reads pressure and flow sensors with 1 LSB resolution, while the 5-bit DAC provides analog bias outputs for sensor excitation. The nanoWatt XLP modes enable battery-backed dosing during power loss, and the wide 1.8-3.6 V range simplifies Li-Ion battery management. Engineers pair this MCU with the MCP4725 DAC for precise motor current control.
Recommended
Consumer Remote Control with Touch Buttons
The PIC16LF19185T-I/MV's CTMU enables capacitive touch buttons that replace mechanical keys in TV remote controls, improving reliability and enabling sealed industrial designs. The 32 MHz CPU runs IR protocols at carrier-accurate timing, while the 14 KB Flash accommodates multiple vendor code sets. The XLP sleep current under 100 nA allows 2x AAA batteries to last the shelf life of the product. PPS remaps UART/I2C pins for different LCD or LED feedback configurations without PCB redesign, accelerating product family variants.
Recommended
Industrial Sensor Transmitter (4-20 mA)
The PIC16LF19185T-I/MV drives 4-20 mA industrial sensor loops where the 1.8-3.6 V VDD is boosted to 24 V loop supply via the MCP1640 and the 12-bit ADC2 reads bridge or RTD sensors with 0.1% accuracy. The hardware RTCC timestamps each measurement for industry-standard HART or Modbus RTU protocols. XLP nanoWatt sleep modes extend battery life in wireless HART transmitters, and the 48-pin UQFN package fits compact field-mount enclosures. Designers pair this MCU with the XTR105 4-20 mA current loop driver.
Recommended
Smart Home Edge Controller
The PIC16LF19185T-I/MV serves as a low-cost edge controller in smart-home gateways, aggregating sensor inputs from door, motion, and environmental sensors via I2C/SPI, then relaying data over UART to a Wi-Fi or Zigbee module. The 14 KB Flash runs Zigbee ZCL or Matter cluster logic, while the 1 KB RAM handles message buffers. The integrated LCD driver enables local display of temperature, humidity, or alarm status without an external UI IC. PPS allows the same PCB to be reused across product variants with different radio modules.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF19185T-I/MV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF19186T-I/MV | PIC16LF19176T-I/MV | PIC16LF19155T-I/MV | PIC16LF19195T-I/MV | PIC16LF19156T-I/MV | PIC16LF1789T-I/MV |
|---|---|---|---|---|---|---|---|
| Package | UQFN-48 (MV) 6x6 mm | UQFN-48 (MV) 6x6 mm - same | UQFN-48 (MV) 6x6 mm - same | UQFN-48 (MV) 6x6 mm - same | UQFN-48 (MV) 6x6 mm - same | UQFN-48 (MV) 6x6 mm - same | UQFN-48 (MV) 6x6 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 14 KB | 28 KB | 28 KB | 14 KB | 28 KB | 28 KB | 28 KB |
| SRAM | 1 KB | 2 KB | 2 KB | 1 KB | 2 KB | 2 KB | 2 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Max CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8-3.6 V | 1.8-3.6 V | 1.8-3.6 V | 1.8-3.6 V | 1.8-3.6 V | 1.8-3.6 V | 1.8-3.6 V |
| LCD Segments | 128 | 128 | 128 | 128 | 192 | 128 | 120 |
| CTMU Touch Sensing | Yes | Yes | Yes | Yes | Yes | Yes | No |
| Approx. Price (qty 1000) | $2.30 | $2.55 | $2.55 | $2.20 | $2.65 | $2.50 | $2.40 |
Key Differentiators
- Balanced 14KB Flash / 1KB RAM with full LCD driver (vs PIC16LF1902-I/SP)
- nanoWatt XLP with CTMU touch + RTCC in single MCU (vs PIC16LF1789T-I/MV)
- Industry-standard PIC16 enhanced mid-range core at 32 MHz (vs PIC16LF18345T-I/SS)
Design Notes
Estimated: At 32 MHz active, VDD=3.3 V, the PIC16LF19185T-I/MV core draws approximately 5-7 mA; in XLP sleep with RTCC retained, current drops below 100 nA. For battery-powered designs, use Sleep mode aggressively and wake via RTCC alarm or IOC interrupt on RB pins. Place a 100 nF decoupling capacitor within 3 mm of each VDD pin and a bulk 10 uF tantalum at the regulator output.
The 48-pin UQFN (MV) 6x6 mm package has a center exposed thermal pad (EP) that must be soldered to a continuous ground pour for electrical reference and thermal dissipation. Use 0.4 mm via array with 0.2 mm drill to stitch the EP to the inner ground plane. Avoid signal traces under the EP pad that could create shorts during reflow.
Peripheral Pin Select (PPS) mapping must be configured in firmware BEFORE the peripheral is enabled; configuring PPS after enabling UART or SPI can cause spurious first-byte transmission. Also, the Configuration Words must include the BOR (brown-out reset) enable bit set to a voltage below your minimum operating VDD to prevent undefined behavior during battery droop.
Route the ICD clock (RB6) and ICD data (RB7) pins directly to the ICSP header with no series resistors, and place a 4.7 kohm pull-up on MCLR to allow in-circuit programming without manual reset. Keep analog ADC traces (ANx pins) short and away from PWM or switching signals to minimize crosstalk below 1 LSB.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial temperature grade only; AEC-Q100 automotive parts available in PIC16F19185-I/PT and PIC16F19185-E/PT variants with PPAP documentation.
